The Pink Floyd Appreciation Society will be performing “Dark Side of the Moon” during Blackout 2017: Great American Eclipse Party in historic downtown McMinnville.“We are so excited about this,” said Main Street McMinnville executive director Katie Kemezis. “Pink Floyd Appreciation Society is out of Nashville and they are musicians who perform and celebrate all things Pink Floyd.”Visitors to Main Street on Monday, Aug. 21 will listen to The Pink Floyd Appreciation Society performing “Dark Side of the Moon” in its entirety while enjoying a once-in-a-lifetime view of the dark side of the moon thanks to a total solar eclipse.The Great American Eclipse, as it is being called nationally, is an extraordinary celestial event. A solar eclipse occurs when the moon passes between Earth and the sun, thereby totally or partly obscuring the image of the sun.